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Old 01-08-2012, 03:53 PM   #1
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Default help determining ABV

I goofed when brewing my IIPA yesterday, took my gravity reading prior to adding 102oz of water to my wort (came in at 1.100!). After transferring to my 6gal carboy I added the 102oz (apprx 3/4 gal) of water and my turkey baster wouldn't reach to wort to pull the more accurate OG. Any way I can estimate my OG knowing that it was 1.100 prior to adding 102oz of spring water? Any help/insight would be appreciated..

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Old 01-08-2012, 03:57 PM   #2
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Try this copy & paste into your browser.

Dave's Dreaded Actual Specific Gravity Calculator

It's a fun tool to calculate ABV

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Old 01-08-2012, 04:04 PM   #3
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According to Beer Smith II

Assuming you started with 4.25 gallons of 1.100 wort then added 102 oz of water, the gravity will be 1.084

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Old 01-08-2012, 04:28 PM   #4
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Quote:
Originally Posted by Dan View Post
According to Beer Smith II

Assuming you started with 4.25 gallons of 1.100 wort then added 102 oz of water, the gravity will be 1.084
Much appreciated Dan!
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Old 01-10-2012, 12:40 AM   #5
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Brew software takes a lot of guess work out of brewing!

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Old 01-10-2012, 12:52 AM   #6
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Abv=og-fg*131.25

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Old 01-10-2012, 04:59 PM   #7
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adjusted OG = starting OG * starting volume / adjusted volume
100 * 4.25 / 5 = 1.085

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